000 01408 a2200409 4500
005 20250513105626.0
264 0 _c19970107
008 199701s 0 0 eng d
022 _a0002-9262
024 7 _a10.1093/oxfordjournals.aje.a008895
_2doi
040 _aNLM
_beng
_cNLM
100 1 _aBlais, L
245 0 0 _aConfounding by indication and channeling over time: the risks of beta 2-agonists.
_h[electronic resource]
260 _bAmerican journal of epidemiology
_cDec 1996
300 _a1161-9 p.
_bdigital
500 _aPublication Type: Journal Article; Research Support, Non-U.S. Gov't
650 0 4 _aAdministration, Inhalation
650 0 4 _aAdolescent
650 0 4 _aAdrenergic beta-Agonists
_xadverse effects
650 0 4 _aAdult
650 0 4 _aAlbuterol
_xadverse effects
650 0 4 _aAsthma
_xdrug therapy
650 0 4 _aChild
650 0 4 _aCohort Studies
650 0 4 _aConfounding Factors, Epidemiologic
650 0 4 _aEpidemiologic Methods
650 0 4 _aFenoterol
_xadverse effects
650 0 4 _aHumans
650 0 4 _aLongitudinal Studies
650 0 4 _aMiddle Aged
650 0 4 _aRisk Factors
650 0 4 _aSeverity of Illness Index
700 1 _aErnst, P
700 1 _aSuissa, S
773 0 _tAmerican journal of epidemiology
_gvol. 144
_gno. 12
_gp. 1161-9
856 4 0 _uhttps://doi.org/10.1093/oxfordjournals.aje.a008895
_zAvailable from publisher's website
999 _c8948580
_d8948580